@@ -202,6 +202,7 @@ describe("CursorTextGeneration", () => {
           id: "run-cursor-partial-title-test",
           status,
           result: '{"title":"Partial title from a failed run."}',
+          ...(status === "error" ? { error: { message: "Usage limit reached." } } : {}),
         } satisfies RunResult;
         cursorSdkMock.prompt.mockResolvedValueOnce(promptResult);
         const generation = yield* makeCursorTextGeneration(cursorSettings, {
@@ -222,7 +223,7 @@ describe("CursorTextGeneration", () => {
         expect(failure.detail).toBe(
           status === "cancelled"
             ? "Cursor SDK request was cancelled."
-            : "Cursor SDK request finished with an error.",
+            : "Cursor SDK request finished with an error: Usage limit reached.",
         );
         expect(cursorSdkMock.close).toHaveBeenCalledOnce();
       }).pipe(Effect.provide(layerTest)),
 
@@ -22,8 +22,12 @@ function cursorSdkResultDetail(result: RunResult): string {
   switch (result.status) {
     case "cancelled":
       return "Cursor SDK request was cancelled.";
-    case "error":
-      return "Cursor SDK request finished with an error.";
+    case "error": {
+      const message = result.error?.message.trim();
+      return message
+        ? `Cursor SDK request finished with an error: ${message}`
+        : "Cursor SDK request finished with an error.";
+    }
     case "finished":
       return "Cursor SDK returned empty output.";
   }